/* GEOLiNK · /motherboards/2-5-inch/ — smallest envelope
   Unique prefix: pg-ff25- . No global class selectors in this file. */

/* ---- Hero: centered statement inside an optical ring ---- */
.pg-ff25-hero {
  padding-block: clamp(42px, 5.5vw, 78px) clamp(30px, 4vw, 52px);
}
.pg-ff25-hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
  text-align: center;
}
.pg-ff25-title {
  max-width: 17ch;
  margin-inline: auto;
  text-align: center;
}
.pg-ff25-title-dim {
  display: block;
  margin-top: var(--space-2);
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.5vw, 30px);
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.pg-ff25-lead {
  margin: var(--space-5) auto 0;
  max-width: 54ch;
  text-align: center;
}
.pg-ff25-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px 20px;
  margin-top: var(--space-5);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  list-style: none;
  text-transform: uppercase;
}
.pg-ff25-stats b {
  color: var(--ink);
  font-size: 13px;
  font-weight: 400;
}
.pg-ff25-actions {
  justify-content: center;
  margin-top: var(--space-6);
}
.pg-ff25-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(300px, 40vw, 470px);
  margin-top: var(--space-5);
  isolation: isolate;
  overflow: hidden;
}
.pg-ff25-ring {
  position: absolute;
  inset: 0;
  margin: auto;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  pointer-events: none;
}
.pg-ff25-ring--outer {
  width: min(430px, 76vw);
  border: 1px solid rgba(66, 126, 198, 0.24);
  animation: pg-ff25-spin 56s linear infinite;
}
.pg-ff25-ring--outer::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 14px rgba(66, 126, 198, 0.45);
}
.pg-ff25-ring--inner {
  width: min(318px, 58vw);
  border: 1px dashed rgba(66, 126, 198, 0.2);
  animation: pg-ff25-spin-reverse 74s linear infinite;
}
.pg-ff25-axis {
  position: absolute;
  background: var(--gradient-hairline);
  pointer-events: none;
}
.pg-ff25-axis--h {
  width: min(620px, 90vw);
  height: 1px;
}
.pg-ff25-axis--v {
  width: 1px;
  height: min(430px, 60vw);
  background: linear-gradient(180deg, transparent, rgba(66, 126, 198, 0.16), transparent);
}
.pg-ff25-frame {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  width: min(300px, 54vw);
  aspect-ratio: 1 / 1;
  padding: clamp(14px, 2vw, 24px);
  border: 1px solid var(--line);
  background:
    radial-gradient(70% 70% at 50% 46%, rgba(255, 255, 255, 0.97), transparent 72%),
    rgba(232, 240, 244, 0.6);
  box-shadow: var(--shadow-object);
}
.pg-ff25-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 16px 18px rgba(43, 52, 56, 0.18));
}
.pg-ff25-measure {
  position: absolute;
  z-index: 3;
  padding: 3px 7px;
  border: 1px solid var(--line);
  background: rgba(247, 249, 250, 0.9);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.05em;
  white-space: nowrap;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.pg-ff25-measure--x {
  bottom: 4%;
  left: 50%;
  transform: translateX(-50%);
}
.pg-ff25-measure--y {
  top: 22%;
  right: 6%;
}
@keyframes pg-ff25-spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes pg-ff25-spin-reverse {
  to {
    transform: rotate(-360deg);
  }
}

/* ---- Four envelope facts ---- */
.pg-ff25-head {
  margin-bottom: var(--space-6);
}
.pg-ff25-facts-section {
  background: var(--color-lab-white);
}
.pg-ff25-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border-block: 1px solid var(--line);
  background: var(--line);
  list-style: none;
}
.pg-ff25-fact {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-4);
  background: var(--color-lab-white);
}
.pg-ff25-fact-label {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}
.pg-ff25-fact strong {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.35;
}
.pg-ff25-fact p {
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.55;
}

/* ---- Model table ---- */
.pg-ff25-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.58);
}
.pg-ff25-table {
  width: 100%;
  min-width: 900px;
  border-collapse: collapse;
  font-size: 12px;
}
.pg-ff25-table caption {
  caption-side: top;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-align: left;
  text-transform: uppercase;
}
.pg-ff25-table thead th {
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--color-ice-deep);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-align: left;
  text-transform: uppercase;
  white-space: nowrap;
}
.pg-ff25-table tbody th,
.pg-ff25-table tbody td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-secondary);
  font-weight: 400;
  text-align: left;
  vertical-align: top;
}
.pg-ff25-table tbody th {
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: nowrap;
}
.pg-ff25-table tbody th a {
  color: var(--ink);
  text-decoration: none;
}
.pg-ff25-table tbody th a:hover {
  color: var(--accent-ink);
}
.pg-ff25-row--doc {
  background: rgba(255, 255, 255, 0.7);
}
.pg-ff25-row--req {
  background: rgba(232, 240, 244, 0.44);
}
.pg-ff25-row--req th a {
  color: var(--text-secondary);
}
.pg-ff25-request {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.02em;
}
.pg-ff25-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border: 1px solid var(--accent-strong);
  border-radius: 50%;
  vertical-align: 1px;
}
.pg-ff25-dot--on {
  background: var(--accent);
}

/* ---- Model cards ---- */
.pg-ff25-cards-section {
  background: linear-gradient(180deg, var(--color-lab-white) 0%, var(--color-ice-deep) 100%);
}
.pg-ff25-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}
.pg-ff25-card {
  border-radius: 0;
}
.pg-ff25-card-media {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border-bottom: 1px solid var(--line-soft);
  background: var(--line-soft);
}
.pg-ff25-card-img {
  display: grid;
  place-items: center;
  aspect-ratio: 1 / 1;
  padding: clamp(10px, 1.8vw, 18px);
  background:
    radial-gradient(70% 70% at 50% 46%, rgba(255, 255, 255, 0.97), transparent 72%),
    var(--gradient-ice);
}
.pg-ff25-card-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 10px 12px rgba(43, 52, 56, 0.14));
}
.pg-ff25-card-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5);
}
.pg-ff25-card-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}
.pg-ff25-card-top h3 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0.02em;
}
.pg-ff25-card-top h3 a {
  color: var(--ink);
  text-decoration: none;
}
.pg-ff25-card-top h3 a:hover {
  color: var(--accent-ink);
}
.pg-ff25-card-dim {
  color: var(--text-secondary);
  font-size: 11px;
}
.pg-ff25-card-body p {
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.55;
}
.pg-ff25-card-link {
  align-self: flex-start;
  margin-top: var(--space-2);
  border-bottom: 1px solid currentColor;
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.pg-ff25-views {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-6);
}
.pg-ff25-view {
  margin: 0;
}
.pg-ff25-view img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  padding: 6px;
  object-fit: contain;
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.6);
}
.pg-ff25-view figcaption {
  margin-top: 5px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ---- Trade-off: media left, copy right ---- */
.pg-ff25-trade-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}
.pg-ff25-trade-media {
  margin: 0;
}
.pg-ff25-trade-media img {
  display: block;
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(0.82) contrast(1.02);
}
.pg-ff25-trade-media figcaption {
  margin-top: var(--space-2);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.5;
}
.pg-ff25-trade-copy h2 {
  max-width: 18ch;
}
.pg-ff25-trade-copy > p {
  margin-top: var(--space-4);
  color: var(--text-secondary);
}
.pg-ff25-next {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.pg-ff25-next-item {
  display: grid;
  gap: 6px;
  text-decoration: none;
}
.pg-ff25-next-item img {
  width: 100%;
  aspect-ratio: 1 / 1;
  padding: 6px;
  object-fit: contain;
  border: 1px solid var(--line-soft);
  background: var(--color-ice-soft);
}
.pg-ff25-next-item span {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.04em;
}
.pg-ff25-next-item:hover span {
  color: var(--accent-ink);
}
.pg-ff25-industries {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 16px;
  margin: var(--space-5) 0 0;
  padding: var(--space-4) 0 0;
  border-top: 1px solid var(--line-soft);
  list-style: none;
}
.pg-ff25-industries a {
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ---- True-scale drawing ---- */
.pg-ff25-scale-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.pg-ff25-scale-copy h2 {
  max-width: 16ch;
}
.pg-ff25-scale-copy > p {
  margin-top: var(--space-4);
  color: var(--text-secondary);
}
.pg-ff25-scale-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: var(--space-6) 0 0;
  border: 1px solid var(--line);
  background: var(--line);
}
.pg-ff25-scale-list div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 10px 12px;
  background: var(--color-white);
}
.pg-ff25-scale-list dt {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9.5px;
}
.pg-ff25-scale-list dd {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-variant-numeric: tabular-nums;
}
.pg-ff25-scale-figure {
  margin: 0;
  padding: clamp(18px, 3vw, 32px);
  border: 1px solid var(--line);
  background-color: var(--color-white);
  background-image:
    linear-gradient(to right, rgba(205, 217, 222, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(205, 217, 222, 0.5) 1px, transparent 1px);
  background-size: 5px 5px;
  box-shadow: var(--shadow-raised);
}
.pg-ff25-scale-svg {
  display: block;
  margin-inline: auto;
  overflow: visible;
}
.pg-ff25-scale-gridlines line {
  stroke: var(--line);
  stroke-width: 1;
}
.pg-ff25-scale-other rect {
  fill: rgba(255, 255, 255, 0.62);
  stroke: var(--line-strong);
  stroke-width: 1;
}
.pg-ff25-scale-major rect {
  fill: rgba(66, 126, 198, 0.12);
  stroke: var(--accent-ink);
  stroke-width: 1.5;
}
.pg-ff25-scale-dims line {
  stroke: var(--text-secondary);
  stroke-width: 1;
}
.pg-ff25-scale-labels text,
.pg-ff25-scale-bar text {
  fill: var(--ink);
  font-family: var(--font-mono);
  font-size: 9px;
}
.pg-ff25-scale-bar line {
  stroke: var(--ink);
  stroke-width: 1;
}
.pg-ff25-scale-figure figcaption {
  margin-top: var(--space-3);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.5;
}

/* ---- FAQ ---- */
.pg-ff25-faq-list {
  border-top: 1px solid var(--line);
}
.pg-ff25-faq {
  border-bottom: 1px solid var(--line-soft);
}
.pg-ff25-faq summary {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: 18px 34px 18px 0;
  position: relative;
  color: var(--ink);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.45;
  cursor: pointer;
  list-style: none;
}
.pg-ff25-faq summary::-webkit-details-marker {
  display: none;
}
.pg-ff25-faq summary::after {
  content: "+";
  position: absolute;
  top: 16px;
  right: 4px;
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 300;
}
.pg-ff25-faq[open] summary::after {
  content: "−";
}
.pg-ff25-faq-index {
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}
.pg-ff25-faq p {
  padding: 0 0 20px 26px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.65;
}

/* ---- CTA ---- */
.pg-ff25-cta {
  border-top: 1px solid var(--line);
  background:
    radial-gradient(700px 300px at 50% 30%, rgba(66, 126, 198, 0.08), transparent 72%),
    var(--color-ice-deep);
}
.pg-ff25-cta-inner {
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
}
.pg-ff25-cta-inner h2 {
  max-width: 18ch;
  margin-inline: auto;
}
.pg-ff25-cta-inner > p {
  margin: var(--space-4) auto 0;
  color: var(--text-secondary);
}

/* ---- Responsive ---- */
@media (max-width: 980px) {
  .pg-ff25-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .pg-ff25-trade-grid,
  .pg-ff25-scale-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .pg-ff25-trade-media {
    max-width: 520px;
  }
}
@media (max-width: 680px) {
  .pg-ff25-cards {
    grid-template-columns: minmax(0, 1fr);
  }
  .pg-ff25-views {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 520px) {
  .pg-ff25-facts {
    grid-template-columns: minmax(0, 1fr);
  }
  .pg-ff25-scale-list {
    grid-template-columns: minmax(0, 1fr);
  }
  .pg-ff25-next {
    grid-template-columns: minmax(0, 1fr);
  }
  .pg-ff25-measure--y {
    right: 2%;
  }
}
@media (prefers-reduced-motion: reduce) {
  .pg-ff25-ring--outer,
  .pg-ff25-ring--inner {
    animation: none;
  }
}